Aluminum foil bag food bag is made of heat softening
Aluminum foil bag food bag has the properties of heating softening, cooling hardening, and no chemical reaction, no matter how many times the heating and cooling are repeated, this performance can be maintained. The molecular structure of thermoplastic resin is linear. It includes all polymerized resins and partially condensed resins. Thermoplastic resins are: polyethylene, polyvinyl chloride, polystyrene, polyamide, polyoxymethylene, polycarbonate, polyphenylene ether, polysulfone, rubber, etc. Thermoplastic resin has the advantages of simple processing and high mechanical energy. The disadvantage of aluminum foil bag is poor heat resistance and rigidity.
Expanding knowledge: polyethylene film
The ink adhesion of PE film is poor, which needs to be improved by corona treatment. The wetting tension is a common index to evaluate the quality of corona treatment. Generally, LDPE film for printing is 38-42mn/m and HDPE film is 40-44mn/m. www.dgbpk.com/
Dongguan Beite packaging materials Co., Ltd
Dongguan special bag, plastic bag, plastic bag, plastic bag